Teeeitoet



(No Model.) Y

F. GIRTA-NNER.

STRAW BURNING STOVB..

N0.`378`,786. Patented Feb. 2 8, 1888.

STATES PATENT Tirreno STRAW- BU RNING STOVE.

SPECIFICATION forming part of Letters Patent No. 378,786, dated February28, 1888.

Application filed J" une E27, 1887. Serial No. 242,670. (No model.)

To @ZZ whom, t may concern,.-

Be it known that I, FRED GIRTANNER, a citizen of the United States,residing at Big Stone City, in the county of Grant, Dakota Territory,have invented a new and useful Improvement in Straw-Burning Stoves, ofwhich the following is a specification.

My invention relates to an improvement in straw-burning stoves; and itconsists in the peculiar construction and combination of devices, thatwill be more fully set forth hereinafter, and particularly pointed outin the claims.

In the drawings, Figure lis a perspective View of a straw-burning stoveembodying my improvements. Fig. 2 is a vertical longitudinal sectionalView of the same. Fig. 3 is a horizontal sectional'view taken on theline x .fr 0f Fig. 2.

' A represents themain body ofthe cook-stove, which is rectangular inshape, as shown, (or may be rounded,) and is provided on its lower frontside with a forward-projecting fire-box, B, the sides of which arevertical, (or may be inelined,)andtl1e front end of which is rounded, asshown. In the bottom of theire-box, at the frontend thereof, is anopening, C, which is adapted to be closed or uncovered bya slide, D.

E represents a removable ash-pan, which is arranged on the under side ofthe firebox and extends nearly to the door. The stove is supported uponsuitable legs, F.

The main body of the stove communicates directly with the rear side ofthe fire-box, and arranged horizontally in 'the main body of the stove,about midway between the lower and upper sides thereof, is a diaphragmor plate, G, which divides the stove into a lower compartment orchamber, H, and an upper compartment or chamber, I. The rear corners orrear portions ofthe diaphragm or plate are cut away, as shown in Fig. 3,in order to establish communication between the upperv and lowerchambers.

K represents a vertical longitudinal partition-plate, which is arrangedunder the center of the diaphragm G, and extends from the same to thebottom of the stove, the front end of the said plate being at the frontend of the main portion of the stove, and the rear end of said plateextending to the rear side of the stove,

so as to dividethe lower compartment or chamber thereof into twoparallel flues, L and M. Other chambers may be made by subdivding thesechambers in same way as above.

N represents a valve which is arranged at the frontend of the flue M,and is provided with an upward-extending operating-rod, O, whichprojects above the upper side of the stove, and has its upper end bentat right angles to form ahandle, P. On the upper side of the main bodyof the stove are the usual openings, R, for the cooking utensils, and inthe upper side of the stove, near its front edge, is an opening, S, forthe attachment of the stove-pipe T. Directly underneath the opening S,and in the diaphragm described above, is .an opening, R, provided with avalve, R2, to give a more direct Yconnection with lire-box B andstove-pipe T.

The front end of the fire-box is provided with a hinged door, U, havinga damper, V, and in the upper side of the nre-box i's an opening, aroundwhichis arranged the vertical collar or flange WV.

X represents a vertical feeding druunwhich has its upper end closed andits lower end open, and adapted to fit in the collar orfiange WV andrest on the upper side of the lire-box. Said feeding-drum is provided onopposite sides with handles Y, by means of which it may be removed fromthe fire-box or placed thereon, and in the lower ends of the feedingdrumis a hinged valve, Z, provided with an adj usting-arm, A', that curvesdownward and forward therefrom, is provided in one side with a series ofnotches, D', and passes through l an opening in the front side of thefeedingdrum, and is thereby adapted to have either of its notchesengaged to one side of the said opening, so as to secure the valve atany desired adjustment in the feeding-drum, according to the'amount offuel it is desired to supply to the fire-box.

The operation of my invention is as follows: By partly opening the valvein the feedingdrum straw is fed therefrom into the fire-box, where itisignited. Then the damper N is opened, the flames, smoke, and products ofcombustion sweep rearward from the fire-box through the flues L and M,and from thence upward over the diaphragm or plate G into the upperehamber,I,thereby thoroughly heating the stove. The smoke and productsof combustion escape through the stove-pipe T. When the damper isclosed, the smoke, iiame, and products of combustion pass rearwardthrough the flue L only, and from thence upward into and through theupper chamber, I, thereby applying the major portion of the heat to oneside of the stove when it is desired to do so. The valve at R is openedwhen fires are started, to give desired draft.

The ashes may be removed from the fire-box from time to time byopeningthe slide C and sweeping the ashes into the ash-pan E. Vh en the latterbecomes filled with ashes, it may be removed and discharged of itscontents. The damper in the door U enables a sufficient quantity of airto be 'admitted to the tire-box to promote combustion.^

Having thus described my invention, I claim- 1. rlhe strawburning stovehaving the main portion A, the fire-box extending therefrom andcommunicating therewith, the horizontal diaphragm G, arranged in theportion A and dividing the same into an upper and lower compartment,said diaphragm having thev opening at its rear corners communicatingwith the said compartments, the vertical longi` tudinal diaphragm K,dividing the lower compartment into horizontal flues L and M, the

damper N at the front end of one of the said lues, the damper R2 in thefront end of diaphragm G, at the center thereof, the top of the stovebeing provided with the escape flue or openings, arranged directly abovethe damper It, substantially as described.

2. A straw-burning stove having the main portion A, provided in itslower side with the longitudinal flues' L and M, the chamber I, arrangedabove the said flues and communicating with the rear ends thereof, theescapeopening in the upper side of the stove to communicate with thestove-pipe, thev damper R2 in the bottom of the chamber I, directlybelow the escape-opening, the fire-boX arranged on the front side of themain portion A and communicating with the lilies L and M, thefeedingdrum arranged on the upper side of the fire-box, the slide in thelower side thereof, the removable ash-pan arranged under the fireboX,and the damper N, arranged at the front end of one of the iues, for thepurpose set forth, substantially as described.

In testimony thatI claim the foregoing as my own I have hereto affixedmy signaturein presence of two witnesses.

FRED GIRIANNER.

Vtuesses:

CASPER HATZ, W. R. MovIUs..

